Guillaume De Courcy
Guillaume De was born about 1285.  He died in 1335.

 Isabeau De Chatillon
Isabeau De was born after 1292.  She died on May 19th, 1360.

 Enguerrand VI De Courcy
Enguerrand VI De was born about 1310.  He died on August 25th, 1346 in Killed in Crecy.

 Aubert De Courcy
Aubert De was born about 1320.  He died in 1388.

 Raoul De Courcy
Raoul De was born about 1325.  He died after 1389.

 Jeanne De Courcy
Jeanne De was born about 1330.